Shaft-coupling.



G. A. SWARTZ.

SHAFT COUPLING.

APPLICATION FILED JULY 15. 1914.

Patent-ed May 8, 1917.

UNITED snares PATENT @FFICE.

GEORGE SWARTZ, F PEARL RIVER, NEW YORK.

SHAFT-COUPLING.

appertains-to make and use the same.

This invention relates to improvements in shaft couplers and universaljoints which are employed for connecting two shafts or other rotatablepower transmitting memhere which are arranged either substantially 1nalinement or at an angle to each other.

The object of the. present invention is to simplify the construction ofshaft couplers of this] character, whereby a structure is providedwherein there is a continuous central working of the various operatingparts.

An additional object is the provision of a device of this characterwhich will be simple 'and inexpensive in manufacture, eflicient anddurable in use, effective in operation,

and a general improvement of the art.

With these and other objects and advantages m-view, the invention:consists in the construction and arrangement of parts as will behereinafter more fully described and claimed, and illustrated inthe'accompanying drawing, in which Figure 1 is a top plan view of mydevice, Fig. 2 1s a longitudinal sectional view,-

Fig. 3-is a similar viewtaken at right i angles to Fig. 2, and

Fig. 4 is a central cross sectional View: Referring more particularly tothe drawmg, the numeral. 5 designates the socket portion of my devicewhich comprises asubstantially semi-spherical shell 6 having anannularflange 7 formed threon'and provided with a pluralityof holes 8.The shell 6 terminates ina sleeve 9 provided 7 with a socket 10 adaptedto'receive one end of a shaft The outer'faceof the flange 7 is providedwith diametrically arranged semi-circular recesses11,'for a purpose to50 be described. v v

The movable member comprises a ball 12 provided with a slot 13 inalinement with the recesses 11, and terminatingin a spindle 1 l-Specific'ation of Letters Patent.

Patented May 8, 191,7.

Application filed July 15, 1914. Serial No. 851,156.

adapted to be connected with a socket on one end of the other shaft, notshown. The ball 12 is disposed within the semi-spherical shell 6.

In order to clamp the ball within the shell 6, I provide a ring 15provided adjacent its periphery with holes 16 registering with the holes8. The internal periphery of the ring 15 is curved as shown at 17 toconform to the curvature of the ball 12. The ring 15 is provided uponits inner face with recesses 18, diametrically arranged and alining withthe recesses 11.

In order that rotary movement of either the socket member 5 or the ball12 may be imparted to the other member, I provide a pin 19, square incross section and extending through the slot 13 in the ball. The ends ofthe pin 19 are formed circular to provide trunnions 20 disposed withinthe "registering semi-circular recesses 11 and 18 in the flange 7 andring 15, respectively.

The device is assembled as follows: The pin 19 is inserted within theslot 13, and the 'ball 12 is thendisposed within the semispherical shell6, with the trunnions 2O disposed in the recesses 11; The ring 15 15then slipped overthe spindle 14 and onto the ball 12, with the recesses18 engaging the trunnions 20. Bolts 21 are then inserted through thealined holes 8 and 16, for clamping the device firmly together.

It will therefore be obvious that if either the socket or ball member isrotated, the

other-will be rotated by virtue of the pin 19.

It will also be noted that the construction is extremely simple andtherefore leads to economy in construction and renders the device notliable to get out of order.

It will be readily understood that I reserve the right to make variouschanges in the form, construction and arrangement of parts withoutdeparting from the spirit of the invention or limiting the scope of thesubjoined claim.

Having thus described my invention, I claim:

A shaft-coupling, comprising in combination, a semi-spherical shellhaving an out turned flange formed around its edge, said flange havingdiametrically opposite bearing notches formed therein, a narrowcomplementary relzaining ring faced against said flange and havingcompanion notches registering with the notches in said flange, a

spindle rotatably mounted in said bearing notches and having a squaredshank, and a solid spherical head mounted in said shell and retained bysaid ring, said head having a diametrical slot through which saidspindle extends and the latter riding against the opposing faces of theslot.

In testimony whereof, I alfix my signature, in the presence of twowitnesses.

GEORGE A. SWARTZ. Witnesses:

JAMES B. MOORE,

WOOLSEY A. SERVEN.

